Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens, including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to a camera optical lens suitable for handheld devices such as smart phones and digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand for miniature camera lens is increasing day by day, but the photosensitive devices of general camera lens are no other than Charge Coupled Device (CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor), and as the progress of the semiconductor manufacturing technology makes the pixel size of the photosensitive devices shrink, coupled with the current development trend of electronic products being that their functions should be better and their shape should be thin and small, miniature camera lens with good imaging quality therefor has become a mainstream in the market. In order to obtain better imaging quality, the lens that is traditionally equipped in mobile phone cameras adopts a three-piece or four-piece lens structure. And, with the development of technology and the increase of the diverse demands of users, and under this circumstances that the pixel area of photosensitive devices is shrinking steadily and the requirement of the system for the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens design. There is an urgent need for ultra-thin wide-angle camera lenses which have good optical characteristics and the chromatic aberration of which is fully corrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordance with a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lens shown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG. 1;

FIG. 4 presents a schematic diagram of the field curvature and distortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordance with a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lens shown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown in FIG. 5;

FIG. 8 presents the field curvature and distortion of the camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordance with a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lens shown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown in FIG. 9;

FIG. 12 presents the field curvature and distortion of the camera optical lens shown in FIG. 9.

FIG. 13 is a schematic diagram of a camera optical lens in accordance with a fourth embodiment of the present invention;

FIG. 14 presents the longitudinal aberration of the camera optical lens shown in FIG. 13;

FIG. 15 presents the lateral color of the camera optical lens shown in FIG. 13;

FIG. 16 presents the field curvature and distortion of the camera optical lens shown in FIG. 13.

FIG. 17 is a schematic diagram of a camera optical lens in accordance with a fifth embodiment of the present invention;

FIG. 18 presents the longitudinal aberration of the camera optical lens shown in FIG. 17;

FIG. 19 presents the lateral color of the camera optical lens shown in FIG. 17;

FIG. 20 presents the field curvature and distortion of the camera optical lens shown in FIG. 17.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail with reference to several exemplary embodiments. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiments. It should be understood the specific embodiments described hereby is only to explain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera optical lens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of the present invention, the camera optical lens 10 comprises 6 lenses. Specifically, from the object side to the image side, the camera optical lens 10 comprises in sequence: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6. Optical element like optical filter GF can be arranged between the sixth lens L6 and the image surface Si. The first lens L1 is made of plastic material, the second lens L2 is made of glass material, the third lens L3 is made of plastic material, the fourth lens L4 is made of plastic material, the fifth lens L5 is made of plastic material, and the sixth lens L6 is made of plastic material.

Here, the focal length of the whole camera optical lens 10 is defined as f, the focal length of the first lens is defined as f1. The camera optical lens 10 further satisfies the following condition: 0.5≤f1/f≤10. Condition 0.5≤f1/f≤10 fixes the positive refractive power of the first lens L1. If the upper limit of the set value is exceeded, although it benefits the ultra-thin development of lenses, but the positive refractive power of the first lens L1 will be too strong, problem like aberration is difficult to be corrected, and it is also unfavorable for wide-angle development of lens. On the contrary, if the lower limit of the set value is exceeded, the positive refractive power of the first lens L1 becomes too weak, it is then difficult to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.9≤f1/f≤7.7.

The refractive index of the second lens L2 is defined as n2. Here the following condition should satisfied: 1.7≤n2≤2.2. This condition fixes the refractive index of the second lens L2, and refractive index within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.7≤n2≤2.1.

The thickness on-axis of the second lens L2 is defined as d3, and the total optical length of the camera optical lens 10 is defined as TTL. The following condition: 0.01≤d3/TTL≤0.2 should be satisfied. This condition fixes the ratio between the thickness on-axis of the second lens L2 and the total optical length TTL. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.03≤d3/TTL≤0.16 shall be satisfied.

In this embodiment, the first lens L1 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 is defined as R1, the curvature radius of the image side surface of the first lens L1 is defined as R2. The camera optical lens 10 further satisfies the following condition: −27.34≤(R1+R2)/(R1−R2)≤−1.86, which fixes the shape of the first lens L1. When the value is beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the condition −17.09≤(R1+R2)/(R1−R2)≤−2.33 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. The following condition: 0.16≤d1≤0.87 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.25≤d1≤0.70 shall be satisfied.

In this embodiment, the second lens L2 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the second lens L2 is defined as R3, the curvature radius of the image side surface of the second lens L2 is defined as R4. The following condition should be satisfied: −4.98≤(R3+R4)/(R3−R4)≤87.55, which fixes the shape of the second lens L2 and can effectively correct aberration of the camera optical lens. Preferably, the following condition shall be satisfied, −3.11≤(R3+R4)/(R3−R4)≤70.04.

The thickness on-axis of the second lens L2 is defined as d3. The following condition: 0.13≤d3≤1.06 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.21≤d3≤0.85 shall be satisfied.

In this embodiment, the third lens L3 has a positive refractive power.

The thickness on-axis of the third lens L3 is defined as d5. The following condition: 0.10≤d5≤0.59 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.16≤d5≤0.47 shall be satisfied.

In this embodiment, the fourth lens L4 has a concave object side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fourth lens L4 is f4. The following condition should be satisfied: −2.93≤f4/f≤1.98, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition −1.83≤f4/f≤1.58 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 is defined as R7, the curvature radius of the image side surface of the fourth lens L4 is defined as R8. The following condition should be satisfied: −1.33≤(R7+R8)/(R7−R8)≤4.60, by which, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −0.83≤(R7+R8)/(R7−R8)≤3.68.

The thickness on-axis of the fourth lens L4 is defined as d7. The following condition: 0.26≤d7≤0.85 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.41≤d7≤0.68 shall be satisfied.

In this embodiment, the fifth lens L5 has a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fifth lens L5 is f5. The following condition should be satisfied: −1.92≤f5/f≤0.91, which can effectively smooth the light angles of the camera and reduce the tolerance sensitivity. Preferably, the condition −1.20≤f5/f≤0.73 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 is defined as R9, the curvature radius of the image side surface of the fifth lens L5 is defined as R10. The following condition should be satisfied: −3.66≤(R9+R10)/(R9−R10)≤0.49, by which, the shape of the fifth lens L5 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −2.29≤(R9+R10)/(R9−R10)≤0.39.

The thickness on-axis of the fifth lens L5 is defined as d9. The following condition: 0.12≤d9≤0.90 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.20≤d9≤0.72 shall be satisfied.

In this embodiment, the sixth lens L6 has a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the sixth lens L6 is f6. The following condition should be satisfied: −1.04≤f6/f≤2.93, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition −0.65≤f6/f≤2.34 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 is defined as R11, the curvature radius of the image side surface of the sixth lens L6 is defined as R12. The following condition should be satisfied: −45.08≤(R11+R12)/(R11−R12)≤−0.07, by which, the shape of the sixth lens L6 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −28.17≤(R11+R12)/(R11−R12)≤−0.08.

The thickness on-axis of the sixth lens L6 is defined as d11. The following condition: 0.14≤d11≤1.47 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.22≤d11≤1.18 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combined focal length of the first lens L1 and the second lens L2 is f12. The following condition should be satisfied: 0.57≤f12/f≤1.89, which can effectively avoid the aberration and field curvature of the camera optical lens, and can suppress the rear focal length for realizing the ultra-thin lens. Preferably, the condition 0.91≤f12/f≤1.51 should be satisfied.

In this embodiment, the total optical length TTL of the camera optical lens 10 is less than or equal to 6.06 mm, it is beneficial for the realization of ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.79 mm.

In this embodiment, the aperture F number of the camera optical lens 10 is less than or equal to 2.06. A large aperture has better imaging performance. Preferably, the aperture F number of the camera optical lens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole camera optical lens 10 can be made as short as possible, thus the miniaturization characteristics can be maintained.

In the following, an example will be used to describe the camera optical lens 10 of the present invention. The symbols recorded in each example are as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surface of the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arranged on the object side surface and/or image side surface of the lens, so that the demand for high quality imaging can be satisfied, the description below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the following, the unit of the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.285 R1 1.850 d1= 0.377 nd1 1.6575 v1 56.30 R2 2.376 d2= 0.256 R3 3.998 d3= 0.707 nd2 1.7294 v2 56.80 R4 11.337 d4= 0.279 R5 −1243.219 d5= 0.199 nd3 1.6456 v3 21.00 R6 −1243.297 d6= 0.218 R7 −2.978 d7= 0.519 nd4 1.5300 v4 54.38 R8 −1.470 d8= 0.047 R9 −1.496 d9= 0.265 nd5 1.6140 v5 25.60 R10 −5.388 d10= 0.177 R11 1.507 d11= 0.981 nd6 1.6047 v6 39.16 R12 1.647 d12= 0.646 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.630

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvature radius in case of lens;

R1: The curvature radius of the object side surface of the first lens L1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lens L2;

R4: The curvature radius of the image side surface of the second lens L2;

R5: The curvature radius of the object side surface of the third lens L3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lens L4;

R8: The curvature radius of the image side surface of the fourth lens L4;

R9: The curvature radius of the object side surface of the fifth lens L5;

R10: The curvature radius of the image side surface of the fifth lens L5;

R11: The curvature radius of the object side surface of the sixth lens L6;

R12: The curvature radius of the image side surface of the sixth lens L6;

R13: The curvature radius of the object side surface of the optical filter GF;

R14: The curvature radius of the image side surface of the optical filter GF;

d: The thickness on-axis of the lens and the distance on-axis between the lens;

d0: The distance on-axis from aperture S1 to the object side surface of the first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lens L1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lens L2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the image surface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10 in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1  4.6542E−01 −0.014581204 0.008705034 −0.014847249 0.012612933 −0.008804664 0.003559367 −0.000892226 R2  7.1056E−01 −0.014111299 −0.005245909 0.004047902 −0.002590863 −0.012375923 0.007638762 −0.001426917 R3 −2.2609E+01 0.020556793 −0.035976439 −0.001687134 0.038770133 −0.0667713 0.032548795 −0.003662288 R4  1.7990E+01 −0.043934514 −0.022200911 −0.035502047 0.060207325 −0.064609731 0.027661633 −0.002145938 R5 −1.5114E+20 −0.09248646 −0.045574161 −0.053762377 −0.005138911 0.027081161 0.003309304 −0.002710886 R6 −6.2199E+10 −0.050948956 0.044212234 −0.14160336 0.15183189 −0.087921452 0.021313673 4.08464E−05  R7  3.5092E+00 −0.036141487 0.048148728 0.06881162 −0.057618975 −0.012950533 0.020739406 −0.003853004 R8 −3.1029E−01 0.00490344 −0.036033887 0.063556598 −0.036332377 0.018238846 −0.003032461 −0.000135787 R9 −8.5482E+00 0.002948325 −0.18630786 0.36302583 −0.43038263 0.30137763 −0.11143538 0.01654098 R10 −9.2853E+00 −0.1613754 0.24075179 −0.25740409 0.1711458 −0.063895743 1.24E−02 −9.73E−04 R11 −1.0194E+01 −0.1613754 0.029497136 −0.002194327 −0.000215317 1.01E−05 6.85E−06 −6.53E−07 R12 −4.4395E+00 −0.10569182 0.016605359 −0.002939752 0.00030622 −1.69E−05  4.81E−07 −1.25E−08

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 are aspheric surface indexes.

IH: Image height y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰ +A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses the aspheric surfaces shown in the above condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1).

Table 3 and table 4 show the inflexion points and the arrest point design data of the camera optical lens 10 lens in embodiment 1 of the present invention. In which, P1R1 and P1R2 represent respectively the object side surface and image side surface of the first lens L1, P2R1 and P2R2 represent respectively the object side surface and image side surface of the second lens L2, P3R1 and P3R2 represent respectively the object side surface and image side surface of the third lens L3, P4R1 and P4R2 represent respectively the object side surface and image side surface of the fourth lens L4, P5R1 and P5R2 represent respectively the object side surface and image side surface of the fifth lens L5, P6R1 and P6R2 represent respectively the object side surface and image side surface of the sixth lens L6. The data in the column named “inflexion point position” are the vertical distances from the inflexion points arranged on each lens surface to the optic axis of the camera optical lens 10. The data in the column named “arrest point position” are the vertical distances from the arrest points arranged on each lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 0.955 P2R1 1 0.705 P2R2 2 0.375 1.185 P3R1 1 1.135 P3R2 1 1.215 P4R1 2 1.165 1.335 P4R2 1 1.025 P5R1 1 1.375 P5R2 2 1.155 1.565 P6R1 3 0.485 1.555 2.145 P6R2 1 0.735

TABLE 4 Arrest point number Arrest point position 1 P1R1 0 P1R2 0 P2R1 1 0.995 P2R2 1 0.605 P3R1 0 P3R2 0 P4R1 0 P4R2 1 1.345 P5R1 0 P5R2 0 P6R1 1 1.065 P6R2 1 1.725

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 10 in the first embodiment. FIG. 4 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 10 in the first embodiment, the field curvature S in FIG. 4 is a field curvature in the sagittal direction, T is a field curvature in the meridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3 and the values corresponding with the parameters which are already specified in the conditions.

As shown in Table 13, the first embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.065 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 80.76°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 5 and table 6 show the design data of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 5 R d nd vd S1 ∞ d0= −0.204 R1 1.875 d1= 0.313 nd1 1.4988 v1 56.30 R2 2.171 d2= 0.226 R3 3.760 d3= 0.342 nd2 2.0758 v2 56.80 R4 10.040 d4= 0.323 R5 29.954 d5= 0.252 nd3 1.6779 v3 21.00 R6 29.852 d6= 0.231 R7 −2.964 d7= 0.557 nd4 1.5300 v4 70.01 R8 −1.477 d8= 0.041 R9 −1.541 d9= 0.264 nd5 1.6140 v5 25.60 R10 −5.506 d10= 0.186 R11 1.314 d11= 0.847 nd6 1.5287 v6 43.47 R12 1.64749 d12= 0.707 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.694

Table 6 shows the aspherical surface data of each lens of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1  3.1153E−01 −0.01951026 0.003918869 −0.017117866 0.011794248 −0.009394876 0.002324383 −0.002452063 R2  6.4304E−01 −0.015998501 −0.00655403 0.004877762 −0.000846228 −0.011342559 0.007505319 −0.002810159 R3 −1.9414E+01 0.022099818 −0.036770118 −0.002529522 0.038066651 −0.066982314 0.032797902 −0.003232003 R4  5.2030E−01 −0.045301237 −0.021568442 −0.035752572 0.059713786 −0.064952585 0.027381494 −0.002348103 R5  0.0000E+00 −0.08916502 −0.040800856 −0.051143338 −0.004304867 0.027728764 0.003485067 −0.002577487 R6  0.0000E+00 −0.050765017 0.042238802 −0.14238344 0.1515349 −0.087952363 0.021274716 0.000053318 R7  3.5824E+00 −0.032745237 0.050677988 0.069982467 −0.057192893 −0.012838064 0.020737046 −0.003907834 R8 −3.0907E−01 0.00486865 −0.036515157 0.063333908 −0.036444268 0.018208947 −0.003028976 −0.000104574 R9 −9.7482E+00 0.005047725 −0.18933703 0.36157689 −0.43074223 0.30135757 −0.11137718 0.016593999 R10 −2.0909E+01 −0.15696086 0.24176498 −0.25728564 0.17115481 −0.063897111 1.24E−02 −9.72E−04 R11 −8.8263E+00 −0.15696086 0.029212335 −0.002232876 −0.000216427 1.02E−05 6.91E−06 −6.36E−07 R12 −4.6517E+00 −0.10452469 0.01671444 −0.0029299 0.000304936 −1.72E−05  4.62E−07 −1.17E−08

Table 7 and table 8 show the inflexion points and the arrest point design data of the camera optical lens 20 lens in embodiment 2 of the present invention.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 1 0.965 P1R2 1 0.985 P2R1 1 0.705 P2R2 1 0.395 P3R1 2 0.175 1.095 P3R2 2 0.245 1.225 P4R1 2 0.845 1.305 P4R2 1 1.025 P5R1 1 1.375 P5R2 2 1.075 1.675 P6R1 3 0.495 1.595 2.085 P6R2 1 0.715

TABLE 8 Arrest point number Arrest point position 1 P1R1 0 P1R2 0 P2R1 1 1.005 P2R2 1 0.625 P3R1 1 0.295 P3R2 1 0.425 P4R1 0 P4R2 1 1.345 P5R1 0 P5R2 0 P6R1 1 1.135 P6R2 1 1.645

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 20 in the second embodiment. FIG. 8 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 1.861 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 86.68°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 9 and table 10 show the design data of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 9 R d nd vd S1 ∞ d0= −0.284 R1 1.759 d1= 0.338 nd1 1.5629 v1 56.30 R2 2.120 d2= 0.248 R3 3.687 d3= 0.428 nd2 1.9069 v2 56.80 R4 8.634 d4= 0.309 R5 12.213 d5= 0.279 nd3 1.7198 v3 21.00 R6 12.097 d6= 0.222 R7 −2.976 d7= 0.567 nd4 1.5300 v4 64.04 R8 −1.513 d8= 0.051 R9 −1.538 d9= 0.250 nd5 1.6140 v5 25.60 R10 −5.252 d10= 0.201 R11 1.249 d11= 0.894 nd6 1.4982 v6 36.47 R12 1.47899 d12= 0.706 R13 ∞ d13= 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14= 0.693

Table 10 shows the aspherical surface data of each lens of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1  3.9535E−01 −0.015129598 0.009742329 −0.016981417 0.012535573 −0.006678941 0.003058094 −0.001835471 R2  8.5126E−01 −0.010298437 −0.006103657 0.004203447 −0.000586022 −0.008748837 0.007172022 −0.00342535  R3 −1.7922E+01 0.023628884 −0.035998319 −0.002095306 0.038800388 −0.066469211 0.03210178 −0.003650738 R4  8.2326E+00 −0.044255473 −0.020108387 −0.034952525 0.06056823 −0.06442011 0.027662913 −0.002365208 R5  0.0000E+00 −0.080234987 −0.039730645 −0.050735526 −0.0052181 0.02665619 0.003211672 −0.002469588 R6  0.0000E+00 −0.051443644 0.038521364 −0.14133215 0.15245463 −0.087768648 0.021607979 6.51183E−05  R7  3.7214E+00 −0.034152151 0.049740678 0.069923629 −0.057063498 −0.012641046 0.021046804 −0.003839136 R8 −3.0120E−01 0.00639315 −0.03927271 0.062706963 −0.0368749 0.018031757 −0.002999955 −4.29264E−05   R9 −9.7194E+00 0.003150816 −0.1886045 0.36084028 −0.43066134 0.30161541 −0.11125484  0.016581489 R10 −1.6482E+01 −0.15724541 0.24165103 −0.2573706 0.17113603 −0.063907446 1.24E−02 −9.70E−04 R11 −8.0766E+00 −0.15724541 0.028945076 −0.002184933 −0.000216439 9.69E−06 6.90E−06 −6.35E−07 R12 −3.9015E+00 −0.10454173 0.016843353 −0.002921567 0.000301513 −1.71E−05  4.66E−07 −9.64E−09

Table 11 and table 12 show the inflexion points and the arrest point design data of the camera optical lens 30 lens in embodiment 3 of the present invention.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion point number position 1 position 2 position 3 P1R1 0 P1R2 1 1.045 P2R1 1 0.725 P2R2 1 0.425 P3R1 2 0.285 1.105 P3R2 2 0.385 1.195 P4R1 2 0.875 1.305 P4R2 1 1.045 P5R1 1 1.345 P5R2 2 1.095 1.645 P6R1 3 0.505 1.615 2.035 P6R2 1 0.745

TABLE 12 Arrest point number Arrest point position 1 P1R1 0 P1R2 0 P2R1 1 1.015 P2R2 1 0.675 P3R1 1 0.455 P3R2 1 0.615 P4R1 0 P4R2 1 1.345 P5R1 0 P5R2 0 P6R1 1 1.165 P6R2 1 1.775

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486.1 nm, 587.6 nm and 656.3 nm passes the camera optical lens 30 in the third embodiment. FIG. 12 shows the field curvature and distortion schematic diagrams after light with a wavelength of 587.6 nm passes the camera optical lens 30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.007 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 82.38°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 4

Embodiment 4 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 13 and table 14 show the design data of the camera optical lens 40 in embodiment 4 of the present invention.

TABLE 13 R d nd vd S1 ∞ d0= −0.410 R1 1.541 d1= 0.575 nd1 1.5440 v1 56.10 R2 3.258 d2= 0.034 R3 3.265 d3= 0.257 nd2 1.7550 v2 25.10 R4 3.155 d4= 0.327 R5 42.619 d5= 0.379 nd3 1.5440 v3 56.10 R6 −7.043 d6= 0.153 R7 −4.279 d7= 0.550 nd4 1.6400 v4 23.97 R8 21.428 d8= 0.249 R9 3.570 d9= 0.600 nd5 1.5440 v5 56.10 R10 −1.817 d10= 0.491 R11 −1.928 d11= 0.271 nd6 1.5350 v6 56.10 R12 2.445 d12= 0.243 R13 ∞ d13= 0.210 ndg 1.5160 vg 64.16 R14 ∞ d14= 0.363

Table 14 shows the aspherical surface data of each lens of the camera optical lens 40 in embodiment 4 of the present invention.

TABLE 14 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 −2.3869E−01  8.2760E−03 5.8618E−02 −2.0171E−01 4.6028E−01 −5.8432E−01  3.9477E−01 −1.1356E−01  R2  5.2455E+00 −2.2229E−01 −4.5978E−02   7.2651E−01 −1.3260E+00   1.1412E+00 −4.8800E−01 7.7791E−02 R3  3.7239E+00 −2.0797E−01 −4.9552E−02   7.3644E−01 −1.2960E+00   1.0986E+00 −4.5430E−01 7.5975E−02 R4  3.7047E+00 −4.4593E−02 −6.9959E−02   5.6603E−01 −1.3938E+00   1.9800E+00 −1.5452E+00 5.3797E−01 R5 −1.0226E+02 −4.9965E−02 1.8282E−02 −3.1006E−01 5.5134E−01 −6.0359E−01  1.9576E−01 5.4056E−02 R6  4.1493E+01 −1.1175E−01 9.2042E−02 −3.5099E−01 4.8468E−01 −6.4509E−01  5.9401E−01 −2.1074E−01  R7 −5.4065E+00 −2.3868E−01 1.9735E−01 −3.5511E−01 5.1031E−01 −7.6705E−01  8.2343E−01 −3.3978E−01  R8 −8.0336E+01 −2.2185E−01 1.5889E−01 −1.2148E−01 5.6467E−02  1.0774E−02 −1.6089E−02 3.3268E−03 R9 −2.0048E+01 −1.2639E−02 2.8388E−02 −2.8904E−02 1.0411E−02 −1.8561E−03 −8.2665E−07 3.5025E−05 R10 −8.0110E+00  1.9332E−02 6.6610E−02 −5.4291E−02 1.8415E−02 −3.5441E−03  3.9347E−04 −1.9773E−05  R11 −2.0437E+00 −8.9053E−05 −5.6239E−02   4.5234E−02 −1.4488E−02   2.3954E−03 −2.0445E−04 7.1618E−06 R12 −1.6628E+01 −4.2023E−02 4.9606E−03  1.3830E−03 −7.7677E−04   1.2784E−04 −8.8559E−06 2.2153E−07

Table 15 and table 16 show the inflexion points and the arrest point design data of the camera optical lens 40 lens in embodiment 4 of the present invention.

TABLE 15 Inflexion point Inflexion point Inflexion point number position 1 position 2 P1R1 1 1.035 P1R2 1 0.405 P2R1 2 0.415 0.635 P2R2 P3R1 1 0.205 P3R2 P4R1 P4R2 2 0.135 1.075 P5R1 2 0.885 1.795 P5R2 2 0.615 1.275 P6R1 1 1.285 P6R2 1 0.595

TABLE 16 Arrest point number Arrest point position 1 P1R1 P1R2 1 0.965 P2R1 P2R2 P3R1 1 0.335 P3R2 P4R1 P4R2 1 0.235 P5R1 1 1.295 P5R2 1 P6R1 P6R2 1 1.245

FIG. 14 and FIG. 15 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 470 nm, 555 nm and 650 nm passes the camera optical lens 40 in the fourth embodiment. FIG. 16 shows the field curvature and distortion schematic diagrams after light with a wavelength of 470 nm passes the camera optical lens 40 in the fourth embodiment.

As shown in Table 21, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.09 mm, the full vision field image height is 3.128 mm, the vision field angle in the diagonal direction is 78.35°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 5

Embodiment 5 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 17 and table 18 show the design data of the camera optical lens 50 in embodiment 5 of the present invention.

TABLE 17 R d nd vd S1 ∞ d0= −0.410 R1 1.543 d1= 0.580 nd1 1.5440 v1 56.10 R2 3.131 d2= 0.036 R3 3.265 d3= 0.257 nd2 1.8390 v2 23.90 R4 3.155 d4= 0.317 R5 34.357 d5= 0.393 nd3 1.5440 v3 56.10 R6 −5.266 d6= 0.186 R7 −3.525 d7= 0.550 nd4 1.6400 v4 23.97 R8 15.816 d8= 0.196 R9 3.082 d9= 0.600 nd5 1.5440 v5 56.10 R10 −1.849 d10= 0.482 R11 −1.929 d11= 0.294 nd6 1.5350 v6 56.10 R12 2.349 d12= 0.243 R13 ∞ d13= 0.210 ndg 1.5160 vg 64.16 R14 ∞ d14= 0.349

Table 18 shows the aspherical surface data of each lens of the camera optical lens 50 in embodiment 5 of the present invention.

TABLE 18 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16 R1 −2.4281E−01  1.1156E−02 3.8013E−02 −1.3195E−01  3.3848E−01 −4.6968E−01   3.3963E−01 −1.0325E−01 R2  4.9700E+00 −2.4369E−01 −4.2032E−02   7.6353E−01 −1.3768E+00 1.1536E+00 −4.7370E−01  7.0201E−02 R3  3.7239E+00 −2.0797E−01 −4.9552E−02   7.3644E−01 −1.2960E+00 1.0986E+00 −4.5430E−01  7.5975E−02 R4  3.7047E+00 −4.4593E−02 −6.9959E−02   5.6603E−01 −1.3938E+00 1.9800E+00 −1.5452E+00  5.3797E−01 R5 −9.0000E+01 −4.3983E−02 1.6499E−02 −3.6922E−01  7.6173E−01 −1.0210E+00   5.9437E−01 −9.8249E−02 R6  2.2528E+01 −8.0025E−02 6.3580E−02 −3.2139E−01  4.5511E−01 −5.3743E−01   4.4302E−01 −1.4631E−01 R7 −1.0604E+01 −2.1496E−01 1.1101E−01  7.2310E−04 −3.3763E−01 4.7735E−01 −1.4752E−01 −3.4195E−02 R8 −3.1562E+01 −2.3585E−01 1.5612E−01 −9.7128E−02  2.2272E−02 3.6421E−02 −2.5350E−02  4.5741E−03 R9 −1.9139E+01 −5.1586E−03 7.5582E−03 −9.6046E−03 −5.4320E−03 6.4356E−03 −2.2349E−03  2.7174E−04 R10 −9.4768E+00  1.3017E−02 9.3236E−02 −9.2133E−02  4.0217E−02 −9.8871E−03   1.3136E−03 −7.2384E−05 R11 −1.6983E+00 −2.6668E−02 −2.3969E−02   2.4474E−02 −6.8240E−03 8.0432E−04 −3.0803E−05 −6.5364E−07 R12 −1.8846E+01 −4.6146E−02 9.0462E−03 −1.6908E−04 −5.1759E−04 1.1450E−04 −9.5579E−06  2.7509E−07

Table 19 and table 20 show the inflexion points and the arrest point design data of the camera optical lens 50 lens in embodiment 5 of the present invention.

TABLE 19 Inflexion point Inflexion point Inflexion point number position 1 position 2 P1R1 1 1.025 P1R2 1 0.385 P2R1 2 0.415 0.635 P2R2 P3R1 1 0.235 P3R2 P4R1 P4R2 2 0.155 1.055 P5R1 2 0.795 1.735 P5R2 2 0.585 1.185 P6R1 1 1.305 P6R2 1 0.565

TABLE 20 Arrest point number Arrest point position 1 P1R1 P1R2 1 0.945 P2R1 P2R2 P3R1 1 0.375 P3R2 P4R1 P4R2 1 0.265 P5R1 1 1.235 P5R2 P6R1 P6R2 1 1.225

FIG. 18 and FIG. 19 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 470 nm, 555 nm and 650 nm passes the camera optical lens 50 in the fifth embodiment. FIG. 20 shows the field curvature and distortion schematic diagrams after light with a wavelength of 470 nm passes the camera optical lens 50 in the fifth embodiment.

As shown in Table 21, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.093 mm, the full vision field image height is 3.128 mm, the vision field angle in the diagonal direction is 78.23°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

TABLE 21 Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 f 4.130 3.722 4.013 3.770 3.777 f1 9.895 20.387 13.715 4.792 4.940 f2 8.137 5.434 6.815 13784.000 1580.000 f3 8.912E+11 8.632E+09 2.093E+14 11.100 8.397 f4 4.892 4.915 5.122 −5.525 −4.450 f5 −3.462 −3.576 −3.635 2.297 2.212 f6 8.055 6.536 7.031 −1.965 −1.926 f12 4.684 4.511 4.795 4.620 4.750 (R1 + R2)/(R1 − R2) −8.034 −13.671 −10.733 −2.795 −2.944 (R3 + R4)/(R3 − R4) −2.090 −2.197 −2.491 58.364 58.364 (R5 + R6)/(R5 − R6) −31795.876 588.278 208.281 0.716 0.734 (R7 + R8)/(R7 − R8) 2.949 2.985 3.069 −0.667 −0.636 (R9 + R10)/(R9 − R10) −1.769 −1.777 −1.828 0.325 0.250 (R11 + R12)/(R11 − R12) −22.539 −8.878 −11.862 −0.118 −0.098 f1/f 2.396 5.478 3.417 1.271 1.308 f2/f 1.970 1.460 1.698 3656.233 418.321 f3/f 2.158E+11 2.319E+09 5.214E+13 2.944 2.223 f4/f 1.185 1.321 1.276 −1.466 −1.178 f5/f −0.838 −0.961 −0.906 0.609 0.586 f6/f 1.951 1.756 1.752 −0.521 −0.510 f12/f 1.134 1.212 1.195 1.225 1.258 d1 0.377 0.313 0.338 0.575 0.580 d3 0.707 0.342 0.428 0.257 0.257 d5 0.199 0.252 0.279 0.379 0.393 d7 0.519 0.557 0.567 0.550 0.550 d9 0.265 0.264 0.250 0.600 0.600 d11 0.981 0.847 0.894 0.271 0.294 Fno 2.000 2.000 2.000 1.804 1.805 TTL 5.510 5.193 5.393 4.701 4.692 d1/TTL 0.068 0.060 0.063 0.122 0.124 d3/TTL 0.128 0.066 0.079 0.055 0.055 d5/TTL 0.036 0.048 0.052 0.081 0.084 d7/TTL 0.094 0.107 0.105 0.117 0.117 d9/TTL 0.048 0.051 0.046 0.128 0.128 d11/TTL 0.178 0.163 0.166 0.058 0.063 n1 1.6575 1.4988 1.5629 1.5440 1.5440 n2 1.7294 2.0758 1.9069 1.7550 1.8390 n3 1.6456 1.6779 1.7198 1.5440 1.5440 n4 1.5300 1.5300 1.5300 1.6400 1.6400 n5 1.6140 1.6140 1.6140 1.5440 1.5440 n6 1.6047 1.5287 1.4982 1.5350 1.5350 v1 56.3000 56.3000 56.3000 56.1000 56.1000 v2 56.8000 56.8000 56.8000 25.1000 23.9000 v3 20.9996 20.9997 20.9999 56.1000 56.1000 v4 54.3797 70.0068 64.0437 23.9700 23.9700 v5 25.6000 25.6000 25.6000 56.1000 56.1000 v6 39.1551 43.4711 36.4666 56.1000 56.1000

It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed. 

What is claimed is:
 1. A camera optical lens comprising, from an object side to an image side in sequence: a first lens has a positive refractive power, a second lens has a positive refractive power, a third lens has a positive refractive power, a fourth lens, a fifth lens, and a sixth lens; wherein the camera optical lens further satisfies the following conditions: 0.5≤f1/f≤10; 1.7≤n2≤2.2; 0.01≤d3/TTL≤0.2; where f: the focal length of the camera optical lens; f1: the focal length of the first lens; n2: the refractive index of the second lens; d3: the thickness on-axis of the second lens; TTL: the total optical length of the camera optical lens.
 2. The camera optical lens as described in claim 1, wherein the first lens is made of plastic material, the second lens is made of glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of plastic material.
 3. The camera optical lens as described in claim 1 further satisfying the following conditions: 0.9≤f1/f≤7.7; 1.7≤n2≤2.1; 0.03≤d3/TTL≤0.16.
 4. The camera optical lens as described in claim 1, wherein first lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: −27.34≤(R1+R2)/(R1−R2)≤−1.86; 0.16 mm≤d1≤0.87 mm; where R1: the curvature radius of object side surface of the first lens; R2: the curvature radius of image side surface of the first lens; d1: the thickness on-axis of the first lens.
 5. The camera optical lens as described in claim 4 further satisfying the following conditions: −17.09≤(R1+R2)/(R1−R2)≤−2.33; 0.25 mm≤d1≤0.70 mm.
 6. The camera optical lens as described in claim 1, wherein the second lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: (R3+R4)/(R3−R4)≤87.55; 0.13 mm≤d3≤1.06 mm; where R3: the curvature radius of the object side surface of the second lens; R4: the curvature radius of the image side surface of the second lens; d3: the thickness on-axis of the second lens.
 7. The camera optical lens as described in claim 6 further satisfying the following conditions: −3.11≤(R3+R4)/(R3−R4)≤70.04; 0.21 mm≤d3≤0.85 mm.
 8. The camera optical lens as described in claim 1, wherein the camera optical lens further satisfies the following conditions: 0.10 mm≤d5≤0.59 mm; where d5: the thickness on-axis of the third lens.
 9. The camera optical lens as described in claim 8 further satisfying the following conditions: 0.16 mm≤d5≤0.47 mm.
 10. The camera optical lens as described in claim 1, wherein the fourth lens has a concave object side surface; the camera optical lens further satisfies the following conditions: −2.93≤f4/f≤1.98; −1.33≤(R7+R8)/(R7−R8)≤4.60; 0.26 mm≤d7≤0.85 mm; where f: the focal length of the camera optical lens; f4: the focal length of the fourth lens; R7: the curvature radius of the object side surface of the fourth lens; R8: the curvature radius of the image side surface of the fourth lens; d7: the thickness on-axis of the fourth lens.
 11. The camera optical lens as described in claim 10 further satisfying the following conditions: −1.83≤f4/f≤1.58; −0.83≤(R7+R8)/(R7−R8)≤3.68; 0.41 mm≤d7≤0.68 mm.
 12. The camera optical lens as described in claim 1, wherein the fifth lens has a convex image side surface; the camera optical lens further satisfies the following conditions: −1.92≤f5/f≤0.91; −3.66≤(R9+R10)/(R9−R10)≤0.49; 0.12 mm≤d9≤0.90 mm; where f: the focal length of the camera optical lens; f5: the focal length of the fifth lens; R9: the curvature radius of the object side surface of the fifth lens; R10: the curvature radius of the image side surface of the fifth lens; d9: the thickness on-axis of the fifth lens.
 13. The camera optical lens as described in claim 12 further satisfying the following conditions: −1.20≤f5/f≤0.73; −2.29≤(R9+R10)/(R9−R10)≤0.39; 0.20 mm≤d9≤0.72 mm.
 14. The camera optical lens as described in claim 1, wherein the sixth lens has a concave image side surface; the camera optical lens further satisfies the following conditions: −1.04≤f6/f≤2.93; −45.08≤(R11+R12)/(R11−R12)≤−0.07; 0.14 mm≤d11≤1.47 mm; where f: the focal length of the camera optical lens; f6: the focal length of the sixth lens; R11: the curvature radius of the object side surface of the sixth lens; R12: the curvature radius of the image side surface of the sixth lens; d11: the thickness on-axis of the sixth lens.
 15. The camera optical lens as described in claim 14 further satisfying the following conditions: −0.65≤f6/f≤2.34; −28.17≤(R11+R12)/(R11−R12)≤−0.08; 0.22 mm≤d11≤1.18 mm.
 16. The camera optical lens as described in claim 1 further satisfying the following condition: 0.57≤f12/f≤1.89; where f12: the combined focal length of the first lens and the second lens; f: the focal length of the camera optical lens.
 17. The camera optical lens as described in claim 16 further satisfying the following conditions: 0.91≤f12/f≤1.51.
 18. The camera optical lens as described in claim 1, wherein the total optical length TTL of the camera optical lens is less than or equal to 6.06 mm.
 19. The camera optical lens as described in claim 18, wherein the total optical length TTL of the camera optical lens is less than or equal to 5.79 mm.
 20. The camera optical lens as described in claim 1, wherein the aperture F number of the camera optical lens is less than or equal to 2.06.
 21. The camera optical lens as described in claim 20, wherein the aperture F number of the camera optical lens is less than or equal to 2.02. 